GB732571A - Improvements in or relating to hydraulically powered aircraft control system - Google Patents

Improvements in or relating to hydraulically powered aircraft control system

Info

Publication number
GB732571A
GB732571A GB29095/52A GB2909552A GB732571A GB 732571 A GB732571 A GB 732571A GB 29095/52 A GB29095/52 A GB 29095/52A GB 2909552 A GB2909552 A GB 2909552A GB 732571 A GB732571 A GB 732571A
Authority
GB
United Kingdom
Prior art keywords
airframe
lever
valve
quadrant
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB29095/52A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northrop Grumman Corp
Original Assignee
Northrop Grumman Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northrop Grumman Corp filed Critical Northrop Grumman Corp
Publication of GB732571A publication Critical patent/GB732571A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C13/00—Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers

Abstract

732,571. Fluid-pressure servomotor-control systems. NORTHROP AIRCRAFT, Inc. Nov. 18, 1952 [Nov. 19, 1951], No. 29095/52. Class 135. [Also in Group XXXIII] A hydraulic aircraft control system for preventing control surface flutter due to airframe flexure comprises a control surface 21 pivoted on the airframe, a hydraulic cylinder 25 connected at one end to move with the surface and having its piston-rod 27 connected, e.g. directly or through a lever system, with a shaft 17 mounted, e.g. directly or by a lever, on the airframe, a control quadrant 19 rotatable coaxially about the shaft, and a valve housing 30, mounted on and moving with the cylinder, having a valve 31 controlling fluid supply to the cylinder and connected by a rod 32 to the quadrant. When shaft 17 is moved due to reaction between cylinder and piston producing airframe flexure, the valve is correspondingly moved to reduce oscillation. In another embodiment where it is not practical to use one shaft 17, the piston-rod is pivotally connected to a lever pivotally mounted at one end on the airframe and having its other end positioned between two opposed pre-loaded springs, the valve-operating quadrant is mounted on another lever also pivoted on the airframe and an adjustable link interconnects the levers so that movement of piston and first lever also moves the quadrant lever and valve.
GB29095/52A 1951-11-19 1952-11-18 Improvements in or relating to hydraulically powered aircraft control system Expired GB732571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US732571XA 1951-11-19 1951-11-19

Publications (1)

Publication Number Publication Date
GB732571A true GB732571A (en) 1955-06-29

Family

ID=22112684

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29095/52A Expired GB732571A (en) 1951-11-19 1952-11-18 Improvements in or relating to hydraulically powered aircraft control system

Country Status (1)

Country Link
GB (1) GB732571A (en)

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